I was able to confirm last evenng that the ver 5.2.10 of this driver did resolve the pulse guide issue (for me). I was able to duplicate the problem using ver 5.2.7 of the driver. Installed the newer version and had a very satisfying evening of guided imaging. Setup: MaxImDL 5.18, TheSkyX 10.1.11 latest build, MX mount.

Rod Cook